Package | feathers.controls |
Class | public class ScrollBar |
Inheritance | ScrollBar FeathersControl starling.display.Sprite |
Implements | IDirectionalScrollBar |
Product Version : | Feathers 1.0.0 |
SimpleScrollBar
is probably a better choice as it provides
only the thumb to indicate position without all the extra chrome.
The following example updates a list to use scroll bars:
list.horizontalScrollBarFactory = function():IScrollBar { return new ScrollBar(); }; list.verticalScrollBarFactory = function():IScrollBar { return new ScrollBar(); };
See also
Property | Defined By | ||
---|---|---|---|
addedEffect : Function
An optional effect that is activated when the component is added to
the stage. | FeathersControl | ||
decrementButtonFactory : Function
A function used to generate the scroll bar's decrement button
sub-component. | ScrollBar | ||
decrementButtonProperties : Object
An object that stores properties for the scroll bar's decrement
button, and the properties will be passed down to the decrement
button when the scroll bar validates. | ScrollBar | ||
defaultTextEditorFactory : Function [static]
A function used by all UI controls that support text editor to
create an ITextEditor instance. | FeathersControl | ||
defaultTextRendererFactory : Function [static]
A function used by all UI controls that support text renderers to
create an ITextRenderer instance. | FeathersControl | ||
depth : int [read-only]
The component's depth in the display list, relative to the stage. | FeathersControl | ||
effectsSuspended : Boolean [read-only]
Indicates if effects have been suspended. | FeathersControl | ||
explicitHeight : Number [read-only]
The height value explicitly set by passing a value to the
height setter or by calling the setSize()
function. | FeathersControl | ||
explicitMaxHeight : Number [read-only]
The maximum height value explicitly set by passing a value to the
maxHeight setter. | FeathersControl | ||
explicitMaxWidth : Number [read-only]
The maximum width value explicitly set by passing a value to the
maxWidth setter. | FeathersControl | ||
explicitMinHeight : Number [read-only]
The minimum height value explicitly set by passing a value to the
minHeight setter. | FeathersControl | ||
explicitMinWidth : Number [read-only]
The minimum width value explicitly set by passing a value to the
minWidth setter. | FeathersControl | ||
explicitWidth : Number [read-only]
The width value explicitly set by passing a value to the
width setter or to the setSize() method. | FeathersControl | ||
focusInEffect : Function
An optional effect that is activated when the component receives
focus. | FeathersControl | ||
focusManager : IFocusManager
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The current focus manager for this component. | FeathersControl | ||
focusOutEffect : Function
An optional effect that is activated when the component loses focus. | FeathersControl | ||
focusOwner : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
Used for associating focusable display objects that are not direct
children with an "owner" focusable display object, such as pop-ups. | FeathersControl | ||
globalStyleProvider : IStyleProvider [static]
The default IStyleProvider for all ScrollBar
components. | ScrollBar | ||
height : Number [override]
The height of the component, in pixels. | FeathersControl | ||
hideEffect : Function
An optional effect that is activated when the component is hidden. | FeathersControl | ||
includeInLayout : Boolean
Determines if the ILayout should use this object or ignore it. | FeathersControl | ||
incrementButtonFactory : Function
A function used to generate the scroll bar's increment button
sub-component. | ScrollBar | ||
incrementButtonProperties : Object
An object that stores properties for the scroll bar's increment
button, and the properties will be passed down to the increment
button when the scroll bar validates. | ScrollBar | ||
isCreated : Boolean [read-only]
Determines if the component has been initialized and validated for
the first time. | FeathersControl | ||
isEnabled : Boolean
Indicates whether the control is interactive or not. | FeathersControl | ||
isFocusEnabled : Boolean
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
Determines if this component can receive focus. | FeathersControl | ||
isInitialized : Boolean [read-only]
Determines if the component has been initialized yet. | FeathersControl | ||
isQuickHitAreaEnabled : Boolean
Similar to mouseChildren on the classic display list. | FeathersControl | ||
isShowingFocus : Boolean [read-only]
The implementation of this method is provided for convenience, but
it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
Indicates if the showFocus() method has been called on
the object when it has focus. | FeathersControl | ||
layoutData : ILayoutData
Extra parameters associated with this display object that will be
used by the layout algorithm. | FeathersControl | ||
liveDragging : Boolean = true
Determines if the scroll bar dispatches the Event.CHANGE
event every time the thumb moves, or only once it stops moving. | ScrollBar | ||
maintainTouchFocus : Boolean [read-only]
The implementation of this method is provided for convenience, but
it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
If true, the display object should remain in focus,
even if something else is touched. | FeathersControl | ||
maxHeight : Number
The maximum recommended height to be used for self-measurement and,
optionally, by any code that is resizing this component. | FeathersControl | ||
maximum : Number
The maximum numeric value of the range. | ScrollBar | ||
maximumTrackFactory : Function
A function used to generate the scroll bar's maximum track
sub-component. | ScrollBar | ||
maximumTrackProperties : Object
An object that stores properties for the scroll bar's "maximum"
track, and the properties will be passed down to the "maximum" track when
the scroll bar validates. | ScrollBar | ||
maxWidth : Number
The maximum recommended width to be used for self-measurement and,
optionally, by any code that is resizing this component. | FeathersControl | ||
minHeight : Number
The minimum recommended height to be used for self-measurement and,
optionally, by any code that is resizing this component. | FeathersControl | ||
minimum : Number
The minimum numeric value of the range. | ScrollBar | ||
minimumTrackFactory : Function
A function used to generate the scroll bar's minimum track
sub-component. | ScrollBar | ||
minimumTrackProperties : Object
An object that stores properties for the scroll bar's "minimum"
track, and the properties will be passed down to the "minimum" track when
the scroll bar validates. | ScrollBar | ||
minTouchHeight : Number
If using isQuickHitAreaEnabled, and the hit area's
height is smaller than this value, it will be expanded. | FeathersControl | ||
minTouchWidth : Number
If using isQuickHitAreaEnabled, and the hit area's
width is smaller than this value, it will be expanded. | FeathersControl | ||
minWidth : Number
The minimum recommended width to be used for self-measurement and,
optionally, by any code that is resizing this component. | FeathersControl | ||
moveEffect : Function
An optional effect that is activated when the component is moved to
a new position. | FeathersControl | ||
nextDownFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The next object that will receive focus when
Keyboard.DOWN is pressed at
KeyLocation.D_PAD and a focus manager is enabled. | FeathersControl | ||
nextLeftFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The next object that will receive focus when
Keyboard.LEFT is pressed at
KeyLocation.D_PAD and a focus manager is enabled. | FeathersControl | ||
nextRightFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The next object that will receive focus when
Keyboard.RIGHT is pressed at
KeyLocation.D_PAD and a focus manager is enabled. | FeathersControl | ||
nextTabFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The next object that will receive focus when the tab key is pressed
when a focus manager is enabled. | FeathersControl | ||
nextUpFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The next object that will receive focus when
Keyboard.UP is pressed at
KeyLocation.D_PAD and a focus manager is enabled. | FeathersControl | ||
page : Number
The amount the scroll bar value must change to get from one "page" to
the next. | ScrollBar | ||
previousTabFocus : IFocusDisplayObject
The implementation of this property is provided for convenience,
but it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
The previous object that will receive focus when the tab key is
pressed while holding shift when a focus manager is enabled. | FeathersControl | ||
repeatDelay : Number
The time, in seconds, before actions are repeated. | ScrollBar | ||
resizeEffect : Function
An optional effect that is activated when the component is resized
with new dimensions. | FeathersControl | ||
showEffect : Function
An optional effect that is activated when the component is shown. | FeathersControl | ||
step : Number
The amount the value must change to increment or decrement. | ScrollBar | ||
styleName : String
The concatenated styleNameList, with values separated
by spaces. | FeathersControl | ||
styleNameList : TokenList [read-only]
Contains a list of all "styles" assigned to this control. | FeathersControl | ||
styleProvider : IStyleProvider
When a component initializes, a style provider may be used to set
properties that affect the component's visual appearance. | FeathersControl | ||
thumbFactory : Function
A function used to generate the scroll bar's thumb sub-component. | ScrollBar | ||
thumbProperties : Object
An object that stores properties for the scroll bar's thumb, and the
properties will be passed down to the thumb when the scroll bar
validates. | ScrollBar | ||
toolTip : String
Text to display in a tool tip to when hovering over this component,
if the ToolTipManager is enabled. | FeathersControl | ||
value : Number
The current numeric value. | ScrollBar | ||
width : Number [override]
The width of the component, in pixels. | FeathersControl |
Property | Defined By | ||
---|---|---|---|
actualHeight : Number = 0
The final height value that should be used for layout. | FeathersControl | ||
actualMinHeight : Number = 0
The final minimum height value that should be used for layout. | FeathersControl | ||
actualMinWidth : Number = 0
The final minimum width value that should be used for layout. | FeathersControl | ||
actualWidth : Number = 0
The final width value that should be used for layout. | FeathersControl | ||
decrementButton : BasicButton
The scroll bar's decrement button sub-component. | ScrollBar | ||
decrementButtonStyleName : String = "feathers-scroll-bar-decrement-button"
The value added to the styleNameList of the decrement
button. | ScrollBar | ||
defaultStyleProvider : IStyleProvider [read-only]
When the FeathersControl constructor is called, the
styleProvider property is set to this value. | FeathersControl | ||
incrementButton : BasicButton
The scroll bar's increment button sub-component. | ScrollBar | ||
incrementButtonStyleName : String = "feathers-scroll-bar-increment-button"
The value added to the styleNameList of the increment
button. | ScrollBar | ||
maximumTrack : DisplayObject
The scroll bar's maximum track sub-component. | ScrollBar | ||
maximumTrackStyleName : String = "feathers-scroll-bar-maximum-track"
The value added to the styleNameList of the maximum
track. | ScrollBar | ||
minimumTrack : DisplayObject
The scroll bar's minimum track sub-component. | ScrollBar | ||
minimumTrackStyleName : String = "feathers-scroll-bar-minimum-track"
The value added to the styleNameList of the minimum
track. | ScrollBar | ||
thumb : DisplayObject
The scroll bar's thumb sub-component. | ScrollBar | ||
thumbStyleName : String = "feathers-scroll-bar-thumb"
The value added to the styleNameList of the thumb. | ScrollBar |
Method | Defined By | ||
---|---|---|---|
Constructor. | ScrollBar | ||
getBounds(targetSpace:DisplayObject, resultRect:Rectangle = null):Rectangle [override]
Feathers components use an optimized getBounds()
implementation that may sometimes behave differently than regular
Starling display objects. | FeathersControl | ||
hideFocus():void
The implementation of this method is provided for convenience, but
it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
| FeathersControl | ||
initializeNow():void
If the component has not yet initialized, initializes immediately. | FeathersControl | ||
invalidate(flag:String):void
Call this function to tell the UI control that a redraw is pending. | FeathersControl | ||
isInvalid(flag:String = null):Boolean
Indicates whether the control is pending validation or not. | FeathersControl | ||
move(x:Number, y:Number):void
Sets both the x and the y positions of the control in a single
function call. | FeathersControl | ||
removeFromParentWithEffect(effect:Function, dispose:Boolean = false):void
Plays an effect before removing the component from its parent. | FeathersControl | ||
resetStyleProvider():void
Resets the styleProvider property to its default value,
which is usually the global style provider for the component. | FeathersControl | ||
resumeEffects():void
Indicates that effects should be re-activated after being suspended. | FeathersControl | ||
setSize(width:Number, height:Number):void
Sets both the width and the height of the control in a single
function call. | FeathersControl | ||
showFocus():void
The implementation of this method is provided for convenience, but
it cannot be used unless a subclass implements the
IFocusDisplayObject interface.
| FeathersControl | ||
suspendEffects():void
Indicates that effects should not be activated temporarily. | FeathersControl | ||
validate():void
Immediately validates the display object, if it is invalid. | FeathersControl |
Method | Defined By | ||
---|---|---|---|
autoSizeIfNeeded():Boolean
If the component's dimensions have not been set explicitly, it will
measure its content and determine an ideal size for itself. | ScrollBar | ||
clearInvalidationFlag(flag:String):void
Clears an invalidation flag. | FeathersControl | ||
createDecrementButton():void
Creates and adds the decrementButton sub-component and
removes the old instance, if one exists. | ScrollBar | ||
createIncrementButton():void
Creates and adds the incrementButton sub-component and
removes the old instance, if one exists. | ScrollBar | ||
createMaximumTrack():void
Creates and adds the maximumTrack sub-component and
removes the old instance, if one exists. | ScrollBar | ||
createMinimumTrack():void
Creates and adds the minimumTrack sub-component and
removes the old instance, if one exists. | ScrollBar | ||
createThumb():void
Creates and adds the thumb sub-component and
removes the old instance, if one exists. | ScrollBar | ||
draw():void
Override to customize layout and to adjust properties of children. | FeathersControl | ||
focusInHandler(event:Event):void
Default event handler for FeathersEventType.FOCUS_IN
that may be overridden in subclasses to perform additional actions
when the component receives focus. | FeathersControl | ||
focusOutHandler(event:Event):void
Default event handler for FeathersEventType.FOCUS_OUT
that may be overridden in subclasses to perform additional actions
when the component loses focus. | FeathersControl | ||
ignoreNextStyleRestriction():void
The next style that is set will not be restricted. | FeathersControl | ||
initialize():void
Called the first time that the UI control is added to the stage, and
you should override this function to customize the initialization
process. | FeathersControl | ||
processStyleRestriction(key:Object):Boolean
Used by setters for properties that are considered "styles" to
determine if the setter has been called directly on the component or
from a style provider. | FeathersControl | ||
refreshFocusIndicator():void
Updates the focus indicator skin by showing or hiding it and
adjusting its position and dimensions. | FeathersControl | ||
saveMeasurements(width:Number, height:Number, minWidth:Number = 0, minHeight:Number = 0):Boolean
Saves the dimensions and minimum dimensions calculated for the
component. | FeathersControl | ||
setInvalidationFlag(flag:String):void
Sets an invalidation flag. | FeathersControl | ||
setSizeInternal(width:Number, height:Number, canInvalidate:Boolean):Boolean
Sets the width and height of the control, with the option of
invalidating or not. | FeathersControl |
Event | Summary | Defined By | ||
---|---|---|---|---|
Dispatched when the user starts interacting with the scroll bar's thumb, track, or buttons. | ScrollBar | |||
Dispatched when the scroll bar's value changes. | ScrollBar | |||
Dispatched after the component has validated for the first time. | FeathersControl | |||
Dispatched when the user stops interacting with the scroll bar's thumb, track, or buttons. | ScrollBar | |||
Dispatched after initialize() has been called, but before the first time that draw() has been called. | FeathersControl | |||
Dispatched when the width or height of the control changes. | FeathersControl |
Style | Defined By | ||
---|---|---|---|
customDecrementButtonStyleName : String A style name to add to the scroll bar's decrement button sub-component. | ScrollBar | ||
customIncrementButtonStyleName : String A style name to add to the scroll bar's increment button sub-component. | ScrollBar | ||
customMaximumTrackStyleName : String A style name to add to the scroll bar's maximum track sub-component. | ScrollBar | ||
customMinimumTrackStyleName : String A style name to add to the scroll bar's minimum track sub-component. | ScrollBar | ||
customThumbStyleName : String A style name to add to the scroll bar's thumb sub-component. | ScrollBar | ||
direction : String Determines if the scroll bar's thumb can be dragged horizontally or vertically. | ScrollBar | ||
fixedThumbSize : Boolean Determines if the scroll bar's thumb will be resized based on the scrollable range, or if it will be rendered at its preferred size. | ScrollBar | ||
focusIndicatorSkin : DisplayObject If this component supports focus, this optional skin will be displayed above the component when showFocus() is called. | FeathersControl | ||
focusPadding : Number Quickly sets all focus padding properties to the same value. | FeathersControl | ||
focusPaddingBottom : Number The minimum space, in pixels, between the object's bottom edge and the bottom edge of the focus indicator skin. | FeathersControl | ||
focusPaddingLeft : Number The minimum space, in pixels, between the object's left edge and the left edge of the focus indicator skin. | FeathersControl | ||
focusPaddingRight : Number The minimum space, in pixels, between the object's right edge and the right edge of the focus indicator skin. | FeathersControl | ||
focusPaddingTop : Number The minimum space, in pixels, between the object's top edge and the top edge of the focus indicator skin. | FeathersControl | ||
padding : Number Quickly sets all padding properties to the same value. | ScrollBar | ||
paddingBottom : Number The minimum space, in pixels, below the content, not including the track(s). | ScrollBar | ||
paddingLeft : Number The minimum space, in pixels, to the left of the content, not including the track(s). | ScrollBar | ||
paddingRight : Number The minimum space, in pixels, to the right of the content, not including the track(s). | ScrollBar | ||
paddingTop : Number The minimum space, in pixels, above the content, not including the track(s). | ScrollBar | ||
trackLayoutMode : String Determines how the minimum and maximum track skins are positioned and sized. | ScrollBar |
Constant | Defined By | ||
---|---|---|---|
DEFAULT_CHILD_STYLE_NAME_DECREMENT_BUTTON : String = "feathers-scroll-bar-decrement-button" [static]
The default value added to the styleNameList of the decrement
button. | ScrollBar | ||
DEFAULT_CHILD_STYLE_NAME_INCREMENT_BUTTON : String = "feathers-scroll-bar-increment-button" [static]
The default value added to the styleNameList of the increment
button. | ScrollBar | ||
DEFAULT_CHILD_STYLE_NAME_MAXIMUM_TRACK : String = "feathers-scroll-bar-maximum-track" [static]
The default value added to the styleNameList of the maximum
track. | ScrollBar | ||
DEFAULT_CHILD_STYLE_NAME_MINIMUM_TRACK : String = "feathers-scroll-bar-minimum-track" [static]
The default value added to the styleNameList of the minimum
track. | ScrollBar | ||
DEFAULT_CHILD_STYLE_NAME_THUMB : String = "feathers-scroll-bar-thumb" [static]
The default value added to the styleNameList of the thumb. | ScrollBar | ||
INVALIDATION_FLAG_ALL : String = "all" [static]
Flag to indicate that everything is invalid and should be redrawn. | FeathersControl | ||
INVALIDATION_FLAG_DATA : String = "data" [static]
Invalidation flag to indicate that the primary data displayed by the
UI control has changed. | FeathersControl | ||
INVALIDATION_FLAG_FOCUS : String = "focus" [static]
Invalidation flag to indicate that the focus of the UI control has
changed. | FeathersControl | ||
INVALIDATION_FLAG_LAYOUT : String = "layout" [static]
Invalidation flag to indicate that the layout of the UI control has
changed. | FeathersControl | ||
INVALIDATION_FLAG_SCROLL : String = "scroll" [static]
Invalidation flag to indicate that the scroll position of the UI
control has changed. | FeathersControl | ||
INVALIDATION_FLAG_SELECTED : String = "selected" [static]
Invalidation flag to indicate that the selection of the UI control
has changed. | FeathersControl | ||
INVALIDATION_FLAG_SIZE : String = "size" [static]
Invalidation flag to indicate that the dimensions of the UI control
have changed. | FeathersControl | ||
INVALIDATION_FLAG_SKIN : String = "skin" [static]
Invalidation flag to indicate that the skin of the UI control has changed. | FeathersControl | ||
INVALIDATION_FLAG_STATE : String = "state" [static]
Invalidation flag to indicate that the state has changed. | FeathersControl | ||
INVALIDATION_FLAG_STYLES : String = "styles" [static]
Invalidation flag to indicate that the styles or visual appearance of
the UI control has changed. | FeathersControl |
decrementButton | property |
protected var decrementButton:BasicButton
The scroll bar's decrement button sub-component.
For internal use in subclasses.
See also
decrementButtonFactory | property |
decrementButtonFactory:Function
A function used to generate the scroll bar's decrement button
sub-component. The decrement button must be an instance of
BasicButton
. This factory can be used to change
properties on the decrement button when it is first created. For
instance, if you are skinning Feathers components without a theme,
you might use this factory to set skins and other styles on the
decrement button.
The function should have the following signature:
function():BasicButton
In the following example, a custom decrement button factory is passed to the scroll bar:
scrollBar.decrementButtonFactory = function():BasicButton { var button:BasicButton = new BasicButton(); button.defaultSkin = new Image( upTexture ); button.downSkin = new Image( downTexture ); return button; };
The default value is null
.
public function get decrementButtonFactory():Function
public function set decrementButtonFactory(value:Function):void
See also
decrementButtonProperties | property |
decrementButtonProperties:Object
An object that stores properties for the scroll bar's decrement
button, and the properties will be passed down to the decrement
button when the scroll bar validates. For a list of available
properties, refer to
feathers.controls.BasicButton
.
If the subcomponent has its own subcomponents, their properties
can be set too, using attribute @
notation. For example,
to set the skin on the thumb which is in a SimpleScrollBar
,
which is in a List
, you can use the following syntax:
list.verticalScrollBarProperties.@thumbProperties.defaultSkin = new Image(texture);
Setting properties in a decrementButtonFactory
function instead of using decrementButtonProperties
will
result in better performance.
In the following example, the scroll bar's decrement button properties are updated:
scrollBar.decrementButtonProperties.defaultSkin = new Image( upTexture ); scrollBar.decrementButtonProperties.downSkin = new Image( downTexture );
The default value is null
.
public function get decrementButtonProperties():Object
public function set decrementButtonProperties(value:Object):void
See also
decrementButtonStyleName | property |
protected var decrementButtonStyleName:String = "feathers-scroll-bar-decrement-button"
The value added to the styleNameList
of the decrement
button. This variable is protected
so that sub-classes
can customize the decrement button style name in their constructors
instead of using the default style name defined by
DEFAULT_CHILD_STYLE_NAME_DECREMENT_BUTTON
.
To customize the decrement button style name without subclassing,
see customDecrementButtonStyleName
.
See also
globalStyleProvider | property |
public static var globalStyleProvider:IStyleProvider
The default IStyleProvider
for all ScrollBar
components.
The default value is null
.
See also
incrementButton | property |
protected var incrementButton:BasicButton
The scroll bar's increment button sub-component.
For internal use in subclasses.
See also
incrementButtonFactory | property |
incrementButtonFactory:Function
A function used to generate the scroll bar's increment button
sub-component. The increment button must be an instance of
BasicButton
. This factory can be used to change
properties on the increment button when it is first created. For
instance, if you are skinning Feathers components without a theme,
you might use this factory to set skins and other styles on the
increment button.
The function should have the following signature:
function():BasicButton
In the following example, a custom increment button factory is passed to the scroll bar:
scrollBar.incrementButtonFactory = function():BasicButton { var button:BasicButton = new BasicButton(); button.defaultSkin = new Image( upTexture ); button.downSkin = new Image( downTexture ); return button; };
The default value is null
.
public function get incrementButtonFactory():Function
public function set incrementButtonFactory(value:Function):void
See also
incrementButtonProperties | property |
incrementButtonProperties:Object
An object that stores properties for the scroll bar's increment
button, and the properties will be passed down to the increment
button when the scroll bar validates. For a list of available
properties, refer to
feathers.controls.BasicButton
.
If the subcomponent has its own subcomponents, their properties
can be set too, using attribute @
notation. For example,
to set the skin on the thumb which is in a SimpleScrollBar
,
which is in a List
, you can use the following syntax:
list.verticalScrollBarProperties.@thumbProperties.defaultSkin = new Image(texture);
Setting properties in a incrementButtonFactory
function instead of using incrementButtonProperties
will
result in better performance.
In the following example, the scroll bar's increment button properties are updated:
scrollBar.incrementButtonProperties.defaultSkin = new Image( upTexture ); scrollBar.incrementButtonProperties.downSkin = new Image( downTexture );
The default value is null
.
public function get incrementButtonProperties():Object
public function set incrementButtonProperties(value:Object):void
See also
incrementButtonStyleName | property |
protected var incrementButtonStyleName:String = "feathers-scroll-bar-increment-button"
The value added to the styleNameList
of the increment
button. This variable is protected
so that sub-classes
can customize the increment button style name in their constructors
instead of using the default style name defined by
DEFAULT_CHILD_STYLE_NAME_INCREMENT_BUTTON
.
To customize the increment button style name without subclassing,
see customIncrementButtonName
.
See also
liveDragging | property |
public var liveDragging:Boolean = true
Determines if the scroll bar dispatches the Event.CHANGE
event every time the thumb moves, or only once it stops moving.
In the following example, live dragging is disabled:
scrollBar.liveDragging = false;
The default value is true
.
maximum | property |
maximum:Number
The maximum numeric value of the range.
In the following example, the maximum is changed to 100:
component.minimum = 0; component.maximum = 100; component.step = 1; component.page = 10 component.value = 12;
The default value is 0
.
public function get maximum():Number
public function set maximum(value:Number):void
See also
maximumTrack | property |
protected var maximumTrack:DisplayObject
The scroll bar's maximum track sub-component.
For internal use in subclasses.
See also
maximumTrackFactory | property |
maximumTrackFactory:Function
A function used to generate the scroll bar's maximum track
sub-component. The maximum track must be an instance of
BasicButton
. This factory can be used to change
properties on the maximum track when it is first created. For
instance, if you are skinning Feathers components without a theme,
you might use this factory to set skins and other styles on the
maximum track.
The function should have the following signature:
function():BasicButton
In the following example, a custom maximum track factory is passed to the scroll bar:
scrollBar.maximumTrackFactory = function():BasicButton { var track:BasicButton = new BasicButton(); track.defaultSkin = new Image( upTexture ); track.downSkin = new Image( downTexture ); return track; };
The default value is null
.
public function get maximumTrackFactory():Function
public function set maximumTrackFactory(value:Function):void
See also
maximumTrackProperties | property |
maximumTrackProperties:Object
An object that stores properties for the scroll bar's "maximum"
track, and the properties will be passed down to the "maximum" track when
the scroll bar validates. For a list of available properties, refer to
feathers.controls.BasicButton
.
If the subcomponent has its own subcomponents, their properties
can be set too, using attribute @
notation. For example,
to set the skin on the thumb which is in a SimpleScrollBar
,
which is in a List
, you can use the following syntax:
list.verticalScrollBarProperties.@thumbProperties.defaultSkin = new Image(texture);
Setting properties in a maximumTrackFactory
function
instead of using maximumTrackProperties
will result in
better performance.
In the following example, the scroll bar's maximum track properties are updated:
scrollBar.maximumTrackProperties.defaultSkin = new Image( upTexture ); scrollBar.maximumTrackProperties.downSkin = new Image( downTexture );
The default value is null
.
public function get maximumTrackProperties():Object
public function set maximumTrackProperties(value:Object):void
See also
maximumTrackStyleName | property |
protected var maximumTrackStyleName:String = "feathers-scroll-bar-maximum-track"
The value added to the styleNameList
of the maximum
track. This variable is protected
so that sub-classes
can customize the maximum track style name in their constructors
instead of using the default style name defined by
DEFAULT_CHILD_STYLE_NAME_MAXIMUM_TRACK
.
To customize the maximum track style name without subclassing, see
customMaximumTrackStyleName
.
See also
minimum | property |
minimum:Number
The minimum numeric value of the range.
In the following example, the minimum is changed to 0:
component.minimum = 0; component.maximum = 100; component.step = 1; component.page = 10 component.value = 12;
The default value is 0
.
public function get minimum():Number
public function set minimum(value:Number):void
See also
minimumTrack | property |
protected var minimumTrack:DisplayObject
The scroll bar's minimum track sub-component.
For internal use in subclasses.
See also
minimumTrackFactory | property |
minimumTrackFactory:Function
A function used to generate the scroll bar's minimum track
sub-component. The minimum track must be an instance of
BasicButton
. This factory can be used to change
properties on the minimum track when it is first created. For
instance, if you are skinning Feathers components without a theme,
you might use this factory to set skins and other styles on the
minimum track.
The function should have the following signature:
function():BasicButton
In the following example, a custom minimum track factory is passed to the scroll bar:
scrollBar.minimumTrackFactory = function():BasicButton { var track:BasicButton = new BasicButton(); track.defaultSkin = new Image( upTexture ); track.downSkin = new Image( downTexture ); return track; };
The default value is null
.
public function get minimumTrackFactory():Function
public function set minimumTrackFactory(value:Function):void
See also
minimumTrackProperties | property |
minimumTrackProperties:Object
An object that stores properties for the scroll bar's "minimum"
track, and the properties will be passed down to the "minimum" track when
the scroll bar validates. For a list of available properties, refer to
feathers.controls.BasicButton
.
If the subcomponent has its own subcomponents, their properties
can be set too, using attribute @
notation. For example,
to set the skin on the thumb which is in a SimpleScrollBar
,
which is in a List
, you can use the following syntax:
list.verticalScrollBarProperties.@thumbProperties.defaultSkin = new Image(texture);
Setting properties in a minimumTrackFactory
function
instead of using minimumTrackProperties
will result in
better performance.
In the following example, the scroll bar's minimum track properties are updated:
scrollBar.minimumTrackProperties.defaultSkin = new Image( upTexture ); scrollBar.minimumTrackProperties.downSkin = new Image( downTexture );
The default value is null
.
public function get minimumTrackProperties():Object
public function set minimumTrackProperties(value:Object):void
See also
minimumTrackStyleName | property |
protected var minimumTrackStyleName:String = "feathers-scroll-bar-minimum-track"
The value added to the styleNameList
of the minimum
track. This variable is protected
so that sub-classes
can customize the minimum track style name in their constructors
instead of using the default style name defined by
DEFAULT_CHILD_STYLE_NAME_MINIMUM_TRACK
.
To customize the minimum track style name without subclassing, see
customMinimumTrackStyleName
.
See also
page | property |
page:Number
The amount the scroll bar value must change to get from one "page" to the next.
If this value is 0
, the step
value
will be used instead. If the step
value is
0
, paging is not possible.
In the following example, the page is changed to 10:
scrollBar.minimum = 0; scrollBar.maximum = 100; scrollBar.step = 1; scrollBar.page = 10 scrollBar.value = 12;
The default value is 0
.
public function get page():Number
public function set page(value:Number):void
See also
repeatDelay | property |
repeatDelay:Number
The time, in seconds, before actions are repeated. The first repeat happens after a delay that is five times longer than the following repeats.
In the following example, the repeat delay is changed to 500 milliseconds:
scrollBar.repeatDelay = 0.5;
The default value is 0.05
.
public function get repeatDelay():Number
public function set repeatDelay(value:Number):void
step | property |
step:Number
The amount the value must change to increment or decrement.
In the following example, the step is changed to 1:
component.minimum = 0; component.maximum = 100; component.step = 1; component.page = 10 component.value = 12;
The default value is 0
.
public function get step():Number
public function set step(value:Number):void
See also
thumb | property |
protected var thumb:DisplayObject
The scroll bar's thumb sub-component.
For internal use in subclasses.
See also
thumbFactory | property |
thumbFactory:Function
A function used to generate the scroll bar's thumb sub-component.
The thumb must be an instance of Button
. This factory
can be used to change properties on the thumb when it is first
created. For instance, if you are skinning Feathers components
without a theme, you might use this factory to set skins and other
styles on the thumb.
The function should have the following signature:
function():BasicButton
In the following example, a custom thumb factory is passed to the scroll bar:
scrollBar.thumbFactory = function():BasicButton { var thumb:BasicButton = new BasicButton(); thumb.defaultSkin = new Image( upTexture ); thumb.downSkin = new Image( downTexture ); return thumb; };
The default value is null
.
public function get thumbFactory():Function
public function set thumbFactory(value:Function):void
See also
thumbProperties | property |
thumbProperties:Object
An object that stores properties for the scroll bar's thumb, and the
properties will be passed down to the thumb when the scroll bar
validates. For a list of available properties, refer to
feathers.controls.BasicButton
.
If the subcomponent has its own subcomponents, their properties
can be set too, using attribute @
notation. For example,
to set the skin on the thumb which is in a SimpleScrollBar
,
which is in a List
, you can use the following syntax:
list.verticalScrollBarProperties.@thumbProperties.defaultSkin = new Image(texture);
Setting properties in a thumbFactory
function instead
of using thumbProperties
will result in better
performance.
In the following example, the scroll bar's thumb properties are updated:
scrollBar.thumbProperties.defaultSkin = new Image( upTexture ); scrollBar.thumbProperties.downSkin = new Image( downTexture );
The default value is null
.
public function get thumbProperties():Object
public function set thumbProperties(value:Object):void
See also
thumbStyleName | property |
protected var thumbStyleName:String = "feathers-scroll-bar-thumb"
The value added to the styleNameList
of the thumb. This
variable is protected
so that sub-classes can customize
the thumb style name in their constructors instead of using the
default style name defined by DEFAULT_CHILD_STYLE_NAME_THUMB
.
To customize the thumb style name without subclassing, see
customThumbStyleName
.
See also
value | property |
value:Number
The current numeric value.
In the following example, the value is changed to 12:
component.minimum = 0; component.maximum = 100; component.step = 1; component.page = 10 component.value = 12;
The default value is 0
.
public function get value():Number
public function set value(value:Number):void
See also
ScrollBar | () | Constructor |
public function ScrollBar()
Constructor.
autoSizeIfNeeded | () | method |
protected function autoSizeIfNeeded():Boolean
If the component's dimensions have not been set explicitly, it will
measure its content and determine an ideal size for itself. If the
explicitWidth
or explicitHeight
member
variables are set, those value will be used without additional
measurement. If one is set, but not the other, the dimension with the
explicit value will not be measured, but the other non-explicit
dimension will still need measurement.
Calls saveMeasurements()
to set up the
actualWidth
and actualHeight
member
variables used for layout.
Meant for internal use, and subclasses may override this function with a custom implementation.
ReturnsBoolean |
createDecrementButton | () | method |
protected function createDecrementButton():void
Creates and adds the decrementButton
sub-component and
removes the old instance, if one exists.
Meant for internal use, and subclasses may override this function with a custom implementation.
See also
createIncrementButton | () | method |
protected function createIncrementButton():void
Creates and adds the incrementButton
sub-component and
removes the old instance, if one exists.
Meant for internal use, and subclasses may override this function with a custom implementation.
See also
createMaximumTrack | () | method |
protected function createMaximumTrack():void
Creates and adds the maximumTrack
sub-component and
removes the old instance, if one exists. If the maximum track is not
needed, it will not be created.
Meant for internal use, and subclasses may override this function with a custom implementation.
See also
createMinimumTrack | () | method |
protected function createMinimumTrack():void
Creates and adds the minimumTrack
sub-component and
removes the old instance, if one exists.
Meant for internal use, and subclasses may override this function with a custom implementation.
See also
createThumb | () | method |
protected function createThumb():void
Creates and adds the thumb
sub-component and
removes the old instance, if one exists.
Meant for internal use, and subclasses may override this function with a custom implementation.
See also
beginInteraction | Event |
starling.events.Event
feathers.events.FeathersEventType.BEGIN_INTERACTION
Dispatched when the user starts interacting with the scroll bar's thumb, track, or buttons.
The properties of the event object have the following values:
Property | Value |
---|---|
bubbles | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
data | null |
target | The Object that dispatched the event;
it is not always the Object listening for the event. Use the
currentTarget property to always access the Object
listening for the event. |
FeathersEventType.BEGIN_INTERACTION
event type is
used by many UI controls where a drag or other interaction happens
over time. An example is a Slider
control where the
user touches the thumb to begin dragging.
change | Event |
starling.events.Event
starling.events.Event.CHANGE
Dispatched when the scroll bar's value changes.
The properties of the event object have the following values:
Property | Value |
---|---|
bubbles | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
data | null |
target | The Object that dispatched the event;
it is not always the Object listening for the event. Use the
currentTarget property to always access the Object
listening for the event. |
endInteraction | Event |
starling.events.Event
feathers.events.FeathersEventType.END_INTERACTION
Dispatched when the user stops interacting with the scroll bar's thumb, track, or buttons.
The properties of the event object have the following values:
Property | Value |
---|---|
bubbles | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
data | null |
target | The Object that dispatched the event;
it is not always the Object listening for the event. Use the
currentTarget property to always access the Object
listening for the event. |
FeathersEventType.END_INTERACTION
event type is
used by many UI controls where a drag or other interaction happens
over time. An example is a Slider
control where the
user stops touching the thumb after dragging.
Depending on the control, the result of the interaction may
continue after the interaction ends. For instance, a Scroller
may be "thrown", and the scrolling will continue animating after the
user has finished interacting with it.
trackLayoutMode | style |
trackLayoutMode:String
Determines how the minimum and maximum track skins are positioned and sized.
In the following example, the scroll bar is given two tracks:
scrollBar.trackLayoutMode = TrackLayoutMode.SPLIT;
The default value is feathers.controls.TrackLayoutMode.SINGLE
.
See also
paddingLeft | style |
paddingLeft:Number
The minimum space, in pixels, to the left of the content, not including the track(s).
In the following example, the left padding is changed to 20 pixels:
scrollBar.paddingLeft = 20;
The default value is 0
.
See also
paddingBottom | style |
paddingBottom:Number
The minimum space, in pixels, below the content, not including the track(s).
In the following example, the bottom padding is changed to 20 pixels:
scrollBar.paddingBottom = 20;
The default value is 0
.
See also
paddingRight | style |
paddingRight:Number
The minimum space, in pixels, to the right of the content, not including the track(s).
In the following example, the right padding is changed to 20 pixels:
scrollBar.paddingRight = 20;
The default value is 0
.
See also
paddingTop | style |
paddingTop:Number
The minimum space, in pixels, above the content, not including the track(s).
In the following example, the top padding is changed to 20 pixels:
scrollBar.paddingTop = 20;
The default value is 0
.
See also
padding | style |
padding:Number
Quickly sets all padding properties to the same value. The
padding
getter always returns the value of
paddingTop
, but the other padding values may be
different.
In the following example, the padding is changed to 20 pixels:
scrollBar.padding = 20;
The default value is 0
.
See also
fixedThumbSize | style |
fixedThumbSize:Boolean
Determines if the scroll bar's thumb will be resized based on the scrollable range, or if it will be rendered at its preferred size.
In the following example, the thumb size is fixed:
scrollBar.fixedThumbSize = true;
The default value is false
.
direction | style |
direction:String
Determines if the scroll bar's thumb can be dragged horizontally or vertically. When this value changes, the scroll bar's width and height values do not change automatically.
Note: When using a ScrollBar
with a scrolling
container, the container will automatically set the correct
direction
value. Generally, you should not need to set this
style manually.
In the following example, the direction is changed to vertical:
scrollBar.direction = Direction.VERTICAL;
Note: The Direction.NONE
constant is not supported.
The default value is feathers.layout.Direction.HORIZONTAL
.
See also
customThumbStyleName | style |
customThumbStyleName:String
A style name to add to the scroll bar's thumb sub-component. Typically used by a theme to provide different styles to different scroll bars.
In the following example, a custom thumb style name is passed to the scroll bar:
scrollBar.customThumbStyleName = "my-custom-thumb";
In your theme, you can target this sub-component style name to provide different styles than the default:
getStyleProviderForClass( Button ).setFunctionForStyleName( "my-custom-thumb", setCustomThumbStyles );
The default value is null
.
See also
customMaximumTrackStyleName | style |
customMaximumTrackStyleName:String
A style name to add to the scroll bar's maximum track sub-component. Typically used by a theme to provide different styles to different scroll bars.
In the following example, a custom maximum track style name is passed to the scroll bar:
scrollBar.customMaximumTrackStyleName = "my-custom-maximum-track";
In your theme, you can target this sub-component style name to provide different styles than the default:
getStyleProviderForClass( Button ).setFunctionForStyleName( "my-custom-maximum-track", setCustomMaximumTrackStyles );
The default value is null
.
See also
customMinimumTrackStyleName | style |
customMinimumTrackStyleName:String
A style name to add to the scroll bar's minimum track sub-component. Typically used by a theme to provide different styles to different scroll bars.
In the following example, a custom minimum track style name is passed to the scroll bar:
scrollBar.customMinimumTrackStyleName = "my-custom-minimum-track";
In your theme, you can target this sub-component style name to provide different styles than the default:
getStyleProviderForClass( Button ).setFunctionForStyleName( "my-custom-minimum-track", setCustomMinimumTrackStyles );
The default value is null
.
See also
customIncrementButtonStyleName | style |
customIncrementButtonStyleName:String
A style name to add to the scroll bar's increment button sub-component. Typically used by a theme to provide different styles to different scroll bars.
In the following example, a custom increment button style name is passed to the scroll bar:
scrollBar.customIncrementButtonStyleName = "my-custom-increment-button";
In your theme, you can target this sub-component style name to provide different styles than the default:
getStyleProviderForClass( Button ).setFunctionForStyleName( "my-custom-increment-button", setCustomIncrementButtonStyles );
The default value is null
.
See also
customDecrementButtonStyleName | style |
customDecrementButtonStyleName:String
A style name to add to the scroll bar's decrement button sub-component. Typically used by a theme to provide different styles to different scroll bars.
In the following example, a custom decrement button style name is passed to the scroll bar:
scrollBar.customDecrementButtonStyleName = "my-custom-decrement-button";
In your theme, you can target this sub-component style name to provide different skins than the default style:
getStyleProviderForClass( Button ).setFunctionForStyleName( "my-custom-decrement-button", setCustomDecrementButtonStyles );
The default value is null
.
See also
DEFAULT_CHILD_STYLE_NAME_DECREMENT_BUTTON | Constant |
public static const DEFAULT_CHILD_STYLE_NAME_DECREMENT_BUTTON:String = "feathers-scroll-bar-decrement-button"
The default value added to the styleNameList
of the decrement
button.
See also
DEFAULT_CHILD_STYLE_NAME_INCREMENT_BUTTON | Constant |
public static const DEFAULT_CHILD_STYLE_NAME_INCREMENT_BUTTON:String = "feathers-scroll-bar-increment-button"
The default value added to the styleNameList
of the increment
button.
See also
DEFAULT_CHILD_STYLE_NAME_MAXIMUM_TRACK | Constant |
public static const DEFAULT_CHILD_STYLE_NAME_MAXIMUM_TRACK:String = "feathers-scroll-bar-maximum-track"
The default value added to the styleNameList
of the maximum
track.
See also
DEFAULT_CHILD_STYLE_NAME_MINIMUM_TRACK | Constant |
public static const DEFAULT_CHILD_STYLE_NAME_MINIMUM_TRACK:String = "feathers-scroll-bar-minimum-track"
The default value added to the styleNameList
of the minimum
track.
See also
DEFAULT_CHILD_STYLE_NAME_THUMB | Constant |
public static const DEFAULT_CHILD_STYLE_NAME_THUMB:String = "feathers-scroll-bar-thumb"
The default value added to the styleNameList
of the thumb.
See also